TFA RING RING Bedienungsanleitung Seite 6

Anleitung No. 98.1017_03/06 09.03.2006 14:34 Uhr Seite 6
Radio controlled time reception:
• After the initial setup, the display shows 12.00 h, Saturday 01.01.. The DCF tower icon in
the clock display starts flashing. This indicates that the clock has detected the presence
of a radio signal and is trying to receive it. When the time code is received, the WAVE OK
symbol becomes lit and the radio-controlled time will be displayed.
• If the time reception was not successful, it will repeat a 10-minute reception every
3 hours.
• The clock is able to scan the time signal manually by "SET/WAVE" button.
• The clock automatically scans the time signal at midnight everyday to maintain accurate
timing. If the reception fails, it will repeat again at 1.00 a.m. 2.00a.m. and 3.00 a.m.
• In case the clock cannot detect the DCFsignal (for example due to disturbances,
transmitting distance, etc.), the time can be set manually. The clock will then work as a
normal quartz clock.
• Buttons will not function while scanning DCF signal unless they are well received.
• The time base for the radio controlled time is a Cesium Atomic Clock operated by the
Physikalisch Technische Bundesanstalt Braunschweig which has a time deviation of less
than one second in one million years. The time is coded and transmitted from Main-
flingen near Frankfurt via frequency signal DCF-77 (77.5 kHz) and has a transmitting
range of approximately 1,500 km. Your radio-controlled alarm clock receives this signal
and converts it to show the precise time in summer or wintertime. The quality of the
reception depends greatly on the geographic location. In normal cases, there should be
no reception problems within a 1,500km radius around Frankfurt.
Please take note of the following:
• Recommended distance to any interfering sources like computer monitors or TV sets is a
minimum of 1.5 - 2 metres.
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• Within ferro-concrete rooms (basements, superstructures), the received signal is natural-
ly weakened. In extreme cases, please place the unit close to a window and/or point its
front or back towards the Frankfurt transmitter.
• During night-time, the atmospheric disturbances are usually less severe and reception is
possible in most cases. A single daily reception is adequate to keep the accuracy deviati-
on below 1 second.
Setting of clock and calendar:
• Hold "SET/WAVE" button for 3 seconds to enter setting mode. The time zone and day-
of-week language indicator is flashing. Press "+" button to adjust the setting of time
zone or "-" button to adjust the setting of day-of-week language.
• Day-of-week language: English (EN), German (DE), French (FR), Italian (IT).
• The time zone is used for the countries where the DCF signal can be received but the
time zone is different from the German time (e.g. 1=one hour later).
• Press "SET/WAVE" button to confirm the setting. The year indicator is flashing. Press "+"
or "-" buttons to adjust the setting.
• Press "SET/WAVE" button to confirm the setting. Now set date and time one after the
other. Holding "+" or "-" buttons, you will enter fast mode.
• Press "SET/WAVE" button to confirm each setting. Press "+" button to select 12 or
24 hours mode or "-" button to select °C or °F for temperature unit.
• Press "SET/WAVE" button to confirm the setting.
Alarm clock function:
• Press "+" or "-" button to select Alarm Time in normal mode.
• Press "+" or "-" buttons to adjust the alarm time. Holding "+" or "-" buttons, you will
enter fast mode.
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